Begin with The San Telmo Incident
Enter the Golden Sea with a complete introductory adventure for one Game Master and four to six players.
Play using your preferred TTRPG system, or use the included optional 2d6 Resolution Bridge. No separate rulebook is required when using the Bridge.
GM material: the full adventure contains scenario spoilers. Player-facing handouts are provided separately for the table.
The hook
A routine industrial accident has placed the San Telmo estate behind a military cordon. Injured workers are being prevented from leaving, engineer Emilio Resa has disappeared, and the official account does not match the evidence.
The crew must question witnesses, navigate rival authorities, enter the sealed estate, and decide who will control what lies beneath it.
What's in the box
Designed for a three-to-five-hour session, the Quickstart includes everything a table needs to sit down and play tonight.
Paced for a single evening, with clean act breaks if you need to split across two.
Pregenerated crew with roles, ties to the estate, and clear reasons to push into the cordon.
Estate map, faction handouts, clocks, and a clue web wired to the incident.
A complete introduction to the Golden Sea in a single session, with clean threads a GM can carry into a longer campaign of their own design.
System-agnostic, table-ready
Mar de Oro is system-agnostic, also called system-neutral. Play using your preferred TTRPG system, or use the included optional 2d6 Resolution Bridge. No separate rulebook is required when using the Bridge.
Adapting to D&D 5e, Pathfinder 2e, or Blades in the Dark? The System-Agnostic Adaptation ladder translates capabilities, scale, pressure, and consequences into your system of choice.
Print it, share it with your table, and set the first scene at the cordon.
What comes next
The optional Mar de Oro 2d6 Resolution Bridge includes a small nod to the fiction-first resolution tradition associated with Apocalypse World. Mar de Oro remains an independent, system-neutral setting and is not affiliated with or endorsed by its creators.